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  • Verified reviews icon66
    Verified insulation services reviews

Find Insulation pros in Cortland

Avatar for Peak Performance Insulation LLC
Peak Performance Insulation LLC
5.0(
14
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Cortland, IL and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"Great company to work with. Consultation and estimate process was thorough and transparent. Work was excellent and exceeded expectations. Would definitely recommend them to anyone looking for insulation work."
Blown in Attic Insulation
Attic Insulation
Attic Insulation
Attic Insulation
Attic Insulation

+5

Response time12 hrs
Response rate87%
54 neighbors recently requested a quote
Hawx Insulation- Chicago
4.1(
361
)
Blown-In Insulation - Install or Upgrade

Serving Cortland, IL and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

At Hawx Pest Control, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. Hawx Premium Pest Control will treat your pests, mosquitos, and more- then keep them away for good. If pests come back between treatments so will we, at no additional cost to you. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote. \n

Recommended by75%of homeowners
Spray Foam Genie
5.0(
2
)
Spray Foam Insulation - Install

Serving Cortland, IL and surrounding areas

Approved

In business since 2007

Free estimates

With over 10 years of experience in the insulation industry, we are the service professionals you need to take care of your home or business. We handle all types of insulation projects. We will treat your home as we would treat our own. Give Spray Foam Genie a call today, we look forward to working with you!

Response time7 hrs
7 neighbors recently requested a quote
Fox Valley Gutter Cap, Inc.
4.7(
357
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Cortland, IL and surrounding areas

In business since 2000

Free estimates

Warranties offered

"Hired Fox Valley Gutter Cap to install blown in insulation. They explained entire process and I found them to be friendly, honest, and dependable. Scheduled to arrive at 9am. They arrived exactly at 9 and were done by 10:30. Cleaned up all residue and job looked great . Wouldn't hesitate for a second to hire again or recommend them. Love dealing with straight shooting companies."
Response time1 day
Recommended by98%of homeowners
Avatar for Euro Home Insulation
Euro Home Insulation
5.0(
6
)
Blown-In Insulation - Install or Upgrade

Serving Cortland, IL and surrounding areas

In business since 2025

Free estimates

Emergency services offered

"I hired this company to do Blown in insulation in my attic, the job was done very efficiently, as well as professionally, the workers were very diligent in duties as well as very respectful. I recommend this company."
Attic insulation
Attic insulation
Attic insulation
Attic insulation
Attic insulation

+4

Response time10 mins
Saunders Insulation Specialist
4.6(
14
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Cortland, IL and surrounding areas

In business since 1995

Free estimates

"I had three different people groups in who came in and gave me an estimate and what might be needed and what they discovered is that for some reason when the house was built 16 years ago, they did not really do adequate insulation.  I did feel very comfortable with Precise & Snug.  They were good about being able to show me pictures.  They showed how it looks up on the attic.  When you are in the process, the told us that they can do this and that and it would cost so much and the final bill was $20,000.  I would not use their service in the future."
Recommended by100%of homeowners
Avatar for GF Company
GF Company
4.6(
152
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Cortland, IL and surrounding areas

In business since 1974

Free estimates

Credit card accepted

"we had a large double window two windows one opening replaced they did a a good job made that room much warmer in winter which is what we were after it is now the warmest room in the house in the winter which is good as it is the room we spend most our time in. will defiantly be having them out to price gutters when we are ready in the spring."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+19

Recommended by93%of homeowners
Showing 1-10 of 40
Insulation questions, answered by experts

Yes, many services include adding insulation for energy efficiency. Confirm with your contractor.

Selling a house with spray foam insulation can be challenging due to concerns about improper installation or its compatibility with the home's structure. If not applied correctly, spray foam can cause issues such as moisture buildup, cracking, or damage to wiring and plumbing. If the insulation didn't cure correctly, there are also flammability concerns. Removing or repairing this type of insulation can pose risks as well.

Yes, it is possible to have too much insulation, which can have detrimental effects. While more insulation might seem better for energy efficiency, a home needs to "breathe" or ventilate to release moisture that accumulates inside. Over-insulating can seal a house too tightly, trapping water vapor and leading to several problems, including mold, mildew, and condensation. Homes in warm, humid climates are particularly susceptible to mold, while those in colder climates can experience condensation from temperature fluctuations. Additionally, adding more insulation than the recommended amount for your climate may not provide recoverable energy savings. To avoid these issues, consult a professional insulation contractor who can determine the optimal amount of insulation for your home.

Your house may be cold even if the heat is on because of bad insulation, gaps in doors, small holes pulling hot air from the home, or excess humidity. The heater itself might be malfunctioning. For this problem, you’d need to talk to an HVAC pro. If you have a gas heating system (most do) this should be considered an urgent job as natural gas could be leaking in your home.

Yes. Proper, complete insulation will ensure that you trap the most cool or warm air inside your home, preventing high energy bills. In addition, insulation tends to settle and compress, leaving gaps over time; the more you insulate completely during the initial installation, the less you’ll need to do down the line.

The Cortland, IL homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.